I’m in the same boat, offered to buyback after 5 tries with 2 at the collision center and a rivet patch. Tesla now wants to charge me a mileage offset @ $1 per mile at my current mileage when I reported this issue 8 days after delivery, was then put in an engineering study and would let me know...
I am running this indoors thru conduit
Here is another option I found. You will need to check if it’s rated for outdoor use.
https://nassaunationalcable.com/products/16-awg-4c-shielded-vntc-tray-cable-tc-thhn-insulation-pvc-jacket-600v
I truly hope you’re correct after waiting all this time for the covers. Hopefully the South County St Louis SC is misinformed and we will continue to see the aero covers being installed.